Black Dragons are warriors. They are strong and capable in battles of force, but also ample magic users, capable of devastating opponents with their spells. Their bright eyes give them excellent night vision, which is why they generally hunt during the night.

Dragons are highly-intelligent reptilian creatures that—from a human perspective, at least—appear to live forever. Many different varieties of dragon exist, each with their own unique qualities, habitats, and behavior. Adolescence in dragons is usually marked by the growth of a hatchling’s wings, although not all breeds of dragons grow wings and some breeds have other traits that indicate the beginning of maturation. In Galsreim, dragons and humans coexist peacefully.

Meaning "light bearer", Lucifer is named after the fallen angel who had rebelled against Heaven and God. That very same angel possesses the title "Morning Star" too. It is also the name of the planet Venus when seen at dawn.

He is known as a rebel, treating tradition and rules like trash. Never obeying anyone, he decides his own path and future. There are only few creatures whom he shows some respect, including his owner. Dragons who are older than him regard him as a cheeky brat. Therefore, he bears a bad reputation. Strangely, female dragons are attracted by his indecent behaviour and image. However, he rarely pays any attention to them, except he finds some use in them.